101040554025 has 72 divisors (see below), whose sum is σ = 185765413080. Its totient is φ = 52479360000.

The previous prime is 101040554023. The next prime is 101040554053. The reversal of 101040554025 is 520455040101.

101040554025 is a `hidden beast` number, since 1 + 0 + 104 + 0 + 554 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 8802004761 + 92238549264 = 93819^2 + 303708^2 .

It is not a de Polignac number, because 101040554025 - 2¹ = 101040554023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101040554025.

It is not an unprimeable number, because it can be changed into a prime (101040554023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1349781 + ... + 1422669.

Almost surely, 2^101040554025 is an apocalyptic number.

101040554025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101040554025 is a deficient number, since it is larger than the sum of its proper divisors (84724859055).

101040554025 is a wasteful number, since it uses less digits than its factorization.

101040554025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73067 (or 73059 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 101040554025 its reverse (520455040101), we get a palindrome (621495594126).

The spelling of 101040554025 in words is "one hundred one billion, forty million, five hundred fifty-four thousand, twenty-five".